:root{--bg:#f7f7fb;--fg:#16162a;--muted:#52526b;--card:#fff;--card2:#f0f0f7;--line:#dedeea;--link:#3730a3;--brand:#4338ca;--brand-fg:#fff;--focus:#f97316;--radius:18px;--shadow:0 1px 2px #1414280f, 0 6px 24px #14142812;--font:system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Devanagari", "Noto Sans Arabic", sans-serif;--mono:ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0f0f1a;--fg:#ececf6;--muted:#a9a9c2;--card:#1a1a2b;--card2:#23233a;--line:#303049;--link:#a5b4fc;--brand:#6366f1;--shadow:0 1px 2px #0000004d, 0 6px 24px #0000004d;color-scheme:dark}}:root[data-theme=dark]{--bg:#0f0f1a;--fg:#ececf6;--muted:#a9a9c2;--card:#1a1a2b;--card2:#23233a;--line:#303049;--link:#a5b4fc;--brand:#6366f1;--shadow:0 1px 2px #0000004d, 0 6px 24px #0000004d;color-scheme:dark}*,:before,:after{box-sizing:border-box}[hidden]{display:none!important}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--fg);font:16px/1.55 var(--font);margin:0;overflow-x:hidden}a{color:var(--link);text-underline-offset:2px}img,svg{max-width:100%}h1,h2,h3{margin:0 0 .5em;line-height:1.2}h1{letter-spacing:-.01em;font-size:clamp(1.6rem,4.5vw,2.3rem)}h2{font-size:clamp(1.25rem,3.2vw,1.6rem)}h3{font-size:1.1rem}p{margin:0 0 1em}:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px}.wrap{width:min(1180px,100% - 32px);margin-inline:auto}.skip{inset-inline-start:8px;background:var(--brand);color:#fff;z-index:100;border-radius:10px;padding:8px 14px;position:absolute;top:-60px}.skip:focus{top:8px}.sr-only{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}}.site-header{background:var(--card);border-bottom:1px solid var(--line);z-index:50;position:sticky;top:0}.hdr{justify-content:space-between;align-items:center;gap:12px;min-height:60px;display:flex}.brand{color:var(--fg);align-items:center;gap:8px;font-size:1.1rem;font-weight:800;text-decoration:none;display:flex}.brand .logo{flex:none;width:30px;height:30px}.hdr-nav{align-items:center;gap:4px;display:flex}.hdr-nav>a{color:var(--fg);border-radius:10px;padding:8px 10px;font-weight:600;text-decoration:none}.hdr-nav>a:hover{background:var(--card2)}.menu{position:relative}.menu summary{cursor:pointer;border-radius:10px;align-items:center;gap:6px;min-height:44px;padding:8px 10px;font-weight:600;list-style:none;display:flex}.menu summary::-webkit-details-marker{display:none}.menu summary:hover,.menu[open] summary{background:var(--card2)}.menu summary svg,.icon-btn svg{width:22px;height:22px}.menu-list{inset-inline-end:0;background:var(--card);border:1px solid var(--line);min-width:220px;box-shadow:var(--shadow);z-index:60;border-radius:14px;margin:0;padding:6px;list-style:none;position:absolute;top:calc(100% + 6px)}.menu-list a{color:var(--fg);border-radius:10px;padding:10px 12px;text-decoration:none;display:block}.menu-list a:hover,.menu-list a[aria-current]{background:var(--card2)}.menu-list a[aria-current]{font-weight:700}.lang-code{font-size:.85rem}.icon-btn{color:var(--fg);cursor:pointer;background:0 0;border:0;border-radius:10px;min-width:44px;min-height:44px;padding:10px}.icon-btn:hover{background:var(--card2)}@media (width<=640px){.hide-sm{display:none}.brand span{font-size:1rem}}.site-footer{border-top:1px solid var(--line);background:var(--card);color:var(--muted);margin-top:56px;padding:28px 0 40px;font-size:.95rem}.site-footer a{color:var(--link)}.foot-links,.foot-langs{flex-wrap:wrap;gap:6px 18px;margin:0 0 12px;display:flex}.foot-tag{color:var(--fg);font-weight:600}.page-head{padding:22px 0 8px}.page-head p{color:var(--muted);max-width:70ch;font-size:1.05rem}.crumbs{color:var(--muted);flex-wrap:wrap;gap:6px;margin:14px 0 0;font-size:.9rem;display:flex}.crumbs a{color:var(--muted)}.section{margin:40px 0}.section-title{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.layout{grid-template-columns:minmax(0,1fr);gap:32px;display:grid}@media (width>=1100px){.layout.has-rail{grid-template-columns:minmax(0,1fr) 300px}}.rail{display:none}@media (width>=1100px){.rail{display:block}.rail .sticky{position:sticky;top:84px}}.prose{max-width:72ch}.prose h2{margin-top:1.6em}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.muted{color:var(--muted)}.uses{gap:10px;padding:0;list-style:none;display:grid}.uses li{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:12px 14px}.uses li:before{content:"✓";color:#16a34a;margin-inline-end:8px;font-weight:800}.faq details{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:10px;padding:4px 16px}.faq summary{cursor:pointer;padding:12px 0;font-weight:700}.faq details p{color:var(--muted);margin:0 0 14px}table.data{border-collapse:collapse;background:var(--card);border-radius:12px;width:100%;font-size:.95rem;overflow:hidden}table.data th,table.data td{border:1px solid var(--line);text-align:start;vertical-align:top;padding:10px}table.data th{background:var(--card2)}.table-scroll{overflow-x:auto}.grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;margin:0;padding:0;list-style:none;display:grid}.tile{min-height:104px;color:var(--t-fg);background:linear-gradient(140deg, var(--t-bg1), var(--t-bg2));box-shadow:var(--shadow);border-radius:16px;flex-direction:column;gap:6px;padding:14px;text-decoration:none;transition:transform .15s;display:flex;position:relative;overflow:hidden}.tile:hover{transform:translateY(-2px)}.tile .ico{font-size:1.8rem;line-height:1}.tile .nm{font-weight:800;line-height:1.25}.tile .sub{opacity:.95;font-size:.85rem;font-weight:600}.chips{flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none;display:flex}.chip{border:1px solid var(--line);background:var(--card);min-height:40px;color:var(--fg);border-radius:999px;align-items:center;padding:6px 14px;font-weight:600;text-decoration:none;display:inline-flex}.chip:hover{border-color:var(--brand)}.btn{min-height:46px;font:inherit;cursor:pointer;background:var(--brand);color:var(--brand-fg);border:2px solid #0000;border-radius:14px;justify-content:center;align-items:center;gap:8px;padding:10px 18px;font-weight:700;text-decoration:none;display:inline-flex}.btn.ghost{color:var(--fg);border-color:var(--line);background:0 0}.btn:disabled{opacity:.55;cursor:not-allowed}label{font-weight:600}input,select,textarea{font:inherit;color:var(--fg);background:var(--card);border:1px solid var(--line);border-radius:12px;max-width:100%;min-height:44px;padding:10px 12px}textarea{resize:vertical;width:100%;min-height:140px}.field{gap:6px;margin-bottom:16px;display:grid}.row{flex-wrap:wrap;align-items:end;gap:12px;display:flex}.row>*{min-width:0;max-width:100%}.field>select{width:100%}.stage{--s-bg1:#1e1b4b;--s-bg2:#3730a3;--s-fg:#fff;--s-acc:#a5b4fc;--s-acc-fg:#1e1b4b;background:linear-gradient(150deg, var(--s-bg1), var(--s-bg2));color:var(--s-fg);box-shadow:var(--shadow);isolation:isolate;border-radius:26px;padding:clamp(16px,3vw,28px);position:relative;overflow:hidden}.stage a{color:inherit}.stage-top{text-align:center;justify-items:center;gap:14px;display:grid}.stage-visual{aspect-ratio:1;place-items:center;width:min(100%,300px,44vh);display:grid;position:relative}.stage-visual svg{width:100%;height:100%;position:absolute;inset:0;overflow:visible}.stage-visual{min-height:0}.stage-visual.wide{aspect-ratio:16/9;width:min(100%,600px,80vh)}.stage-time{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.01em;direction:ltr;unicode-bidi:isolate;font-size:clamp(3rem,12vw,6rem);font-weight:800;line-height:1}.stage-visual .stage-time{pointer-events:none;place-items:center;font-size:clamp(2.6rem,11vw,5rem);display:grid;position:absolute;inset:0}.stage-label{opacity:.95;min-height:1.5em;font-size:1.15rem;font-weight:700}.stage-msg{min-height:1.3em;font-size:clamp(1.4rem,5vw,2.2rem);font-weight:800}.stage-controls{flex-wrap:wrap;justify-content:center;gap:10px;margin-top:6px;display:flex}.sbtn{min-width:52px;min-height:52px;font:inherit;cursor:pointer;color:var(--s-fg);background:0 0;border:2px solid;border-radius:16px;justify-content:center;align-items:center;gap:6px;padding:10px 20px;font-weight:800;display:inline-flex}.sbtn.primary{background:var(--s-acc);color:var(--s-acc-fg);border-color:var(--s-acc);min-width:150px;font-size:1.15rem}.sbtn svg{width:22px;height:22px}.stage-set{border-top:1px solid color-mix(in srgb, var(--s-fg) 22%, transparent);gap:14px;margin-top:18px;padding-top:16px;display:grid}.stage-set .lbl{font-size:.95rem;font-weight:700}.schips{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.schip{border:1.5px solid color-mix(in srgb, var(--s-fg) 45%, transparent);min-height:42px;color:var(--s-fg);font:inherit;cursor:pointer;background:0 0;border-radius:999px;padding:6px 14px;font-weight:700}.schip[aria-pressed=true],.schip:hover{background:var(--s-acc);color:var(--s-acc-fg);border-color:var(--s-acc)}.stage input,.stage select{background:color-mix(in srgb, var(--s-bg1) 70%, #000 10%);color:var(--s-fg);border-color:color-mix(in srgb, var(--s-fg) 35%, transparent)}.stage option{color:#111;background:#fff}.hms{flex-wrap:wrap;justify-content:center;align-items:end;gap:8px;display:flex}.hms label{text-align:center;gap:4px;font-size:.85rem;display:grid}.hms input{text-align:center;width:84px;font-size:1.2rem;font-weight:700}.opts{flex-wrap:wrap;justify-content:center;align-items:center;gap:10px 18px;font-size:.95rem;display:flex}.opts label{align-items:center;gap:8px;font-weight:600;display:inline-flex}.opts input[type=checkbox]{width:22px;height:22px;min-height:0;accent-color:var(--s-acc)}.kbd-hint{opacity:.85;text-align:center;margin:0;font-size:.85rem}.stage.is-done .stage-time{animation:1s steps(2,start) infinite blink}@keyframes blink{to{visibility:hidden}}.stage:fullscreen{border-radius:0;flex-direction:column;justify-content:center;padding:3vh 4vw;display:flex}.stage:fullscreen .stage-set,.stage:fullscreen .kbd-hint{display:none}.stage:fullscreen .stage-visual{width:min(78vh,92vw)}.stage:fullscreen .stage-visual.wide{width:min(140vh,94vw)}.stage:fullscreen .stage-time{font-size:min(24vw,34vh)}.stage:fullscreen .stage-visual .stage-time{font-size:min(13vw,15vh)}.ad{text-align:center;margin:28px auto}.ad .ad-label{color:var(--muted);letter-spacing:.04em;text-transform:uppercase;margin-bottom:4px;font-size:.75rem;display:block}.ad-preview-only{display:none}html.ads-preview .ad-preview-only{display:block}.ad-box{color:#6b7280;background:repeating-linear-gradient(45deg,#0000 0 10px,#9ca3af1a 10px 20px);border:2px dashed #9ca3af;border-radius:12px;justify-content:center;align-items:center;font-size:.85rem;display:flex}.ad-display .ad-box,.ad-display ins{min-height:280px}@media (width>=728px){.ad-display .ad-box,.ad-display ins{min-height:120px}}.ad-multiplex .ad-box,.ad-multiplex ins{min-height:400px}.ad-half-page .ad-box,.ad-half-page ins{width:300px;min-height:600px}.ad ins[data-ad-status=unfilled]{display:none!important}.ad.empty{display:none}.toast{inset-inline:0;color:#fff;z-index:90;width:max-content;max-width:calc(100% - 32px);box-shadow:var(--shadow);background:#16162a;border-radius:12px;margin-inline:auto;padding:10px 18px;font-weight:700;position:fixed;bottom:24px}.ad-box:before{content:"Ad preview · " attr(data-kind)}.stage.fs-fallback{z-index:200;border-radius:0;flex-direction:column;justify-content:center;padding:3vh 4vw;display:flex;position:fixed;inset:0;overflow:auto}.stage.fs-fallback .stage-set,.stage.fs-fallback .kbd-hint{display:none}.stage.fs-fallback .stage-visual{width:min(70vh,92vw)}.stage.fs-fallback .stage-time{font-size:min(24vw,30vh)}.stage.fs-fallback .stage-visual .stage-time{font-size:min(13vw,15vh)}body.no-scroll{overflow:hidden}.stage:-webkit-full-screen{border-radius:0;flex-direction:column;justify-content:center;display:flex}